Meyer



(No Model.)

J. P. E. G. STROMEYER.

METHOD OF ATTAG-HING RAILWAY RAILS TO LONGITUDINAL SLEEPEES. No.457,735. Patented Aug. 11,1891.

MT 855 //v VENTOH UNITED STATES PATENT OFFICE.

JOHANN G. STRO-MEYER, OF LONDON, ENGLAND.

METHOD OF ATTACHING RAILWAY-RAILS TO LONGITUDINAL SLEEPERS.

SPECIFICATION forming part of Letters Patent N0. 457,? 35, dated August11, 1891. Application filed February 15,1890. Renewed July 14, 1891.Serial No. 399,457. (No model.)

To all whom it may concern:

Be it known that I, J OHANN P. E. C. STRO- MEYER, of Twickenham, London,England, have invented a new and Improved Method of AttachingRailway-Rails to Longitudinal Sleepers, of which the following is afull, clear, and exact description.

My invention relates to improvements in corrugated longitudinalrailway-sleepers; and the object of my invention is to facilitate andimprove the attachment of rails to the sleepers and to increase thebearing-surfaces in order to reduce the wear and tear at these points.This construction will be hereinafter fully described, and specificallypointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters and figures of referenceindicate corresponding parts in all the vlews.

Figure l is a side elevation of the sleeper with a rail attachedthereto. Fig. 2 is a transverse section of the same on the line 00 a: ofFig. 1. Fig. 3 is a transverse section on the line y y of Fig. 1; andFig. 4., an enlarged detail view of a crest or ridge of the corrugatedsleeper, showing the lugs thereon for holding down the foot of the rail.

The metal sleeper A is formed so as to consist of a number ofcorrugations 1, which may be of any convenient form. At every crest 2 ofthese corrugations two lugs are formed, as'shown in Fig. 4. The lugs toon one side of the sleeper are simple projections, while the lugs to onthe other side are formed with a projecting corner 3 on the lower orhearing side. These lugs are formed by punching and stamping the crestsof the corrugations. The distance which separates the two lugs a a onone crest from each other must be such that the foot of the rail B canbe clasped by them, as shown in Figs. 2 and 3, and at the same timethese lugs a a must be separate so far from each other that the rail Bcan be tilted into the hollow formed between them. hen this has beendone, wedges D, as shown in Figs. 1 and 3, are driven .into the hollowsof the corrugated sleeper, thereby supporting the foot of the rail B,and also pressing the flanges against the under sides of the lugs a a.

The upper surface of the sleeper may be provided with transverse ribs 1)for the purpose of retaining the wedges in place.

I have shown the lugs a a as forming part of the sleeper A; but I do notconfine myself to this method. Instead of these lugs a a small plates orcaps may be bolted to the crests of the corrugations, or hooks may beinserted there; but the inner edges or bearing-surfaces of these hooksor caps must be similar in form to the lugs a a.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. As an improved article of manufacture, atransversely corrugated longitudinal sleeper, along which the rail isadapted to lie lengthwise, provided at the crests of the corrugationswith devices for engaging the foot or base of a rail and provided withribs 1) in the hollows or depressions, substantially as set forth. I

2. As an improved article of manufacture, a transversely corrugatedlongitudinal sleeper, along which the rail is adapted to lie lengthwise,and lugs a a on the crests of the corrugations to receive the base ofthe rail, the lug to having a projecting corner 3 on the lower orbearing side, and transverse Wedges to rest in the hollows ordepressions, support the rails, and hold their bases or feet above thesurface of the crests and against said lug a and projecting corner 3,substantially as set forth.

3. The combination, with transversely-corrugated sleepers, along whichthe rails extend lengthwise, and lugs, hooks, or caps on the crests ofthe corrugations to engage the base or foot of the rail, of transversewedges to rest in the hollows or depressions, support the rails, andhold their bases or feet above the surface of said crests and againstthe said hooks, lugs, or caps, substantially asset forth.

4. The combination, with the transverselycorrugatedlongitudinally-extending sleeper,

along which a rail is adapted to extend rails above the surface of saidcrests and hold lengthwise, ribs across the upper faces of the theirbases up against the said hooks, lugs, or depressions or hollows, andlugs, hooks, or caps, substantially as set forth.

caps a a on the crests and between which J OHANN P. E. C. STROMEYER. 5extends the base of the rail, of transverse Witnesses:

Wooden wedges D, resting on said ribbed JOHN F. HILL,

surfaces and of a thickness to support the JAMES WILLIAMSON.

